High-purity corundum furnace tube, while using its high-purity and high-temperature characteristics, we must follow the inherent characteristics of corundum material (relatively poor thermal shock resistance, not resistant to rapid cooling and rapid heating), and operate with caution during use. Operation will cause the furnace tube to burst. The reasons for the explosion of the furnace tube are analyzed as follows:CK6163 CK6180 CK6185 HEAVY DUTY HORIZONTAL FLAT BED CNC LATHE MACHINE 1. The temperature difference is too large 1. When using a high-temperature furnace tube, the heating and cooling speed is controlled at 5 degrees per minute, the slower the better. Rapid cooling and rapid heating is one of the main reasons for corundum furnace tube breakage, and the operating temperature should generally not exceed 1650°C;CK61100 CK61125 MULTI-FUNCTIONAL AND PRECISION METAL CNC FLAT-BED LATHE 2. Always keep the inside of the tube clean, clean the inner wall of the furnace tube in time after use, and do not leave some samples in the tube to avoid chemical reactions that may cause the corundum tube to crack;Analysis of carbon content on the surface of carburized parts 3. Do not exceed 150 degrees when setting out and sampling, and slowly advance from the edge to the center. High-temperature sample delivery and sampling are the main reasons for corundum tube breakage, so do not touch the high-temperature furnace tube with low-temperature objects;Precision carburizing heat treatment of gears se the furnace tube to break;